nRF52 Hard Faults on Stack Push

RE: nRF52 Hard Faults on Stack Push

tikonen — Thu, 05 Dec 2019 14:38:26 GMT

I encountered this same problem but my fault was incorrectly configured RAM size (namely too large RAM_PH_SIZE in Segger studio "Section placement macros".). My application would crash on startup initialization before reaching main().

RE: nRF52 Hard Faults on Stack Push

D. Rea — Thu, 31 Mar 2016 13:54:12 GMT

@vidar thank you, I can't share the project without approval, but (see possible answer below) I may have found a major debugger config issue. Not sure it is the true root cause, but I haven't experienced any push hard faults since fixing it. Will keep this thread updated...

RE: nRF52 Hard Faults on Stack Push

Vidar Berg — Thu, 31 Mar 2016 13:51:17 GMT

Thanks for the update. Agree in that it should have thrown an error rather than a warning which is easy to miss.

RE: nRF52 Hard Faults on Stack Push

D. Rea — Thu, 31 Mar 2016 13:45:50 GMT

I found one possible issue, but have not confirmed it is the true root cause of this behavior:

In my debug configuration, the debugger's "Device Name" field was still set to an nRF51 device, resulting in a mismatch between the expected core and the core identified by the J-Link. (Aside: this should have thrown an error on debugger startup, not just a warning message!)

Connecting to target...WARNING: Identified core does not match configuration. (Found: Cortex-M4, Configured: Cortex-M0)

I changed the Device Name to "nRF52832_xxAA" per the Segger list of supported device names, and have not experienced the hard fault since. Will keep this thread updated if I encounter the HardFault issue again...

RE: nRF52 Hard Faults on Stack Push

Vidar Berg — Thu, 31 Mar 2016 13:45:25 GMT

Are you able to share your project so I can try to debug it here at my end? You can create a new ticket on mypage if you don't want to make it public.

RE: nRF52 Hard Faults on Stack Push

D. Rea — Thu, 31 Mar 2016 13:41:29 GMT

Yes, I am using the nRF5x SDK release 11...

RE: nRF52 Hard Faults on Stack Push

Vidar Berg — Thu, 31 Mar 2016 13:05:50 GMT

Hi, just to make sure, but you are using SDK 11.0.0 and not 0.9.2 or the alpha release?